Sounding signaling device



J. P. NIKONOW.

SOUNDING SIGNALING DEVICE.

APPLICATION FILED AUG.6. 1919.

1,342,863. Patented June 8, 1920.

WITNESSES 11v VENTUR.

UNITED STATES PATENT OFFICE.

JOHN P. NIKONOW, OF NEW YORK, N. Y.

SOUNDING SIGNALING DEVICE.

Application filed August 6, 1919.

To all whom it may concern Be it known that I, JOHN P. Ninonow,citizenof Russia, and resident of New York city, in the county of NewYork and State of New York, have invented certain new and usefulImprovements in Sounding ignaling Devices, of which the following is aspecification.

My invention relates to the signaling devices, in which sound isproduced by the vibrating diaphragm, and has a particular reference tothe mechanisms, in which the diaphragm is subjected to the blows fromhammers, loosely attached to the rotary shaft.

My mechanism represents an improvement over the existing types in thatthe force of the blows and the intensity of the sound depends on thespeed of the rotation of the shaft. No sound is produced at very slowspeeds, and there is very little resistance to the motion at start.

My invention is more fully explained in the accompanying specificationand drawing, in which- Figure 1 is a sectional elevation of my device,and Fig. 2 is a plan view of the shaft with the hammers.

My device consists of a diaphragm l, attached to a suitable drum orhousing 2, which may be further placed inside of a housing 3. The shaft4 is rotated in a proximity to this diaphragm, carrying one or more ofthe hammers or ring shaped weights 5, pivoted on the eccentric shafts 6.The inside diameter of the rings 5 is larger, than the outside diameterof the shafts 6, and the shafts are placed in such a way, that theseweights can strike the diaphragm only when they are thrown outward bythe Specification of Letters Patent.

Patented June 8, 1920.

Serial No. 315,731.

centrifugal force. In case of a horizontal shaft, the weights would noteven touch the diaphragm, until the speed becomes suf ficiently high.

The rotation may be imparted by the electric motor 7.

Fig. 1 shows a very desirable arrangement of an inclined diaphragminside of a drum 3, which permits the use of a horizontal motor insideof a horizontal tube 3.

Important advantages of my device are, that a comparatively smallelectric motor can be used, as all the force for striking diaphragm isderived from the speed of 1-0 tation and not from direct torque of themotor, as required to overcome the resilient resistance of the diaphragmin other types of such devices. For this reason also a comparativelyheavy diaphragm can be used without any reinforcements at the point ofcontact with the hammers.

Inclined position of the diaphragm allows a very compact and efficientarrangement of the mechanism.

I claim as my invention:

In a sounding signaling device, the (rink bination with a tubularhousing closed on one end and open on the other, an electric motorlocated near the closed end inside and coaxially with said housing, aneccentric on the end of the shaft of said motor, and a soundingdiaphragm fastened inside of said housing near its open end at asufiiciently large angle with the shaft of said motor so as to beactuated by said eccentric.

Signed at New York, in the county of New York and State of New York.this 31st day of July, A. I). 1919.

JOHN P. NIKONOlV.

